After reading some of the threads in "More Like This" column on the right, I have little confidence in either Adobe or Canon resolving this particular problem. A phone call to Canon Support a waste of time. They "do not support third party software...". Adobe Support Portal are still working on my problem.

A profesional film maker friend of mine has the exact same problem with CS4 and a Canon G1. He was alarmed at the number of simular issues found in various forums on the web.

Yes I have contacted Adobe on this matter and I am waiting for their next response in the Support Portal. As a matter of interest, I opened a new project in PE7 and created a time line with 7 minutes of Bar and Tone, still had the same problem, and yet another time line with blank video only - no audio, same problem!